First time posting here I currently installed fedora 27 with KDE and I have a a nvidia GTX 750 TI. I installed the GPU drivers from rpmfusion and everything looks fine on that end. When I tried to run PCSX2 I got this error at first. BTW I installed from fedoras repo.

The illegal instruction is due to missing instruction (SSE/AVX) from your CPU. Check you're plugin directory and delete plugin that aren't supported by your CPU (likely GSdx with AVX2).

If you don't understand the above, just tell us you're CPU and the plugin (so files) on your side.

gregory,

thanks for the response. This is my CPU. This errors are just out of a fresh install so I'm not sure where the plugin directories are located or which ones I'm using specificity. Sorry for the little information.

thanks for the response. This is my CPU. This errors are just out of a fresh install so I'm not sure where the plugin directories are located or which ones I'm using specificity. Sorry for the little information.

I to am having the same issue after upgrading from F26 to F27. The program ran with no problems on F26 but now I can't even get the dumb thing to load. I just get a crash report with the error. "Illegal instruction (core dumped)" not much to go on.
I did how ever find a solution. remove PCSX2 F27 package (dnf remove pcsx2) The install the old F26 package from the this site.https://fedora.pkgs.org/26/rpmfusion-non...6.rpm.html
works great now.

But, I did what the other poster mentioned and installed the fedora 26 version and it was able to come up now. There were some errors but, the application came up. I still not have tested how well it plays.

I to am having the same issue after upgrading from F26 to F27. The program ran with no problems on F26 but now I can't even get the dumb thing to load. I just get a crash report with the error. "Illegal instruction (core dumped)" not much to go on.
I did how ever find a solution. remove PCSX2 F27 package (dnf remove pcsx2) The install the old F26 package from the this site.https://fedora.pkgs.org/26/rpmfusion-non...6.rpm.html
works great now.

Opening plugins...
Opening GS
Current Renderer: OpenGL (Hardware mode)
glX-Version 1.4 with Direct Rendering
OpenGL information. GPU: GeForce GTX 750 Ti/PCIe/SSE2. Vendor: NVIDIA Corporation. Driver: NVIDIA 387.22
INFO: GL_EXT_texture_filter_anisotropic is available
INFO: GL_ARB_gpu_shader5 is available
INFO: GL_ARB_draw_buffers_blend is available
INFO: GL_ARB_separate_shader_objects is available
INFO: GL_ARB_shader_image_load_store is available
INFO: GL_ARB_copy_image is available
INFO: GL_ARB_buffer_storage is available
INFO: GL_ARB_clear_texture is available
INFO: GL_ARB_clip_control is available
INFO: GL_ARB_direct_state_access is available
INFO: GL_ARB_texture_barrier is available

Opening plugins...
Opening GS
Current Renderer: OpenGL (Hardware mode)
glX-Version 1.4 with Direct Rendering
OpenGL information. GPU: GeForce GTX 750 Ti/PCIe/SSE2. Vendor: NVIDIA Corporation. Driver: NVIDIA 387.22
INFO: GL_EXT_texture_filter_anisotropic is available
INFO: GL_ARB_gpu_shader5 is available
INFO: GL_ARB_draw_buffers_blend is available
INFO: GL_ARB_separate_shader_objects is available
INFO: GL_ARB_shader_image_load_store is available
INFO: GL_ARB_copy_image is available
INFO: GL_ARB_buffer_storage is available
INFO: GL_ARB_clear_texture is available
INFO: GL_ARB_clip_control is available
INFO: GL_ARB_direct_state_access is available
INFO: GL_ARB_texture_barrier is available